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RCS1210: Return completed task instead of returning null

Properties​

PropertyValue
Default SeverityWarning
Minimum language version-

Examples​

Example #1​

diagnostic.cs
Task<object> GetAsync()
{
    return null;
}
fix.cs
Task<object> GetAsync()
{
    return Task.FromResult<object>(null);
}

Example #2​

diagnostic.cs
Task<object> GetAsync()
{
    return _foo?.GetAsync();
}
fix.cs
Task<object> GetAsync()
{
    Foo x = _foo;
    if (x != null)
    {
        return _foo.GetAsync();
    }
    else
    {
        return Task.FromResult<object>(null);
    }
}

Applies to​